Assault frustration

[richvalle]

Frankly in the situation you mentioned, I prefer to attack town or entrenched units with higher moral with nice multi stacks of adjacent units using direct fire before I ever use assault combat. Unless I have engineers mixed with infantry, APCs or tanks or I am desperate for time and just want to risk it on the last couple of turns.

This. They need to be softened up first which PG usually gives you enough time to do. 

It can be tricky if they have a lot of OBA to pound you with while you are out in the open.